Cloverleaf quasar

rare example of a quadruply-lensed quasar

en-GB/ˈkləʊvəliːf ˈkweɪzɑːɹ/
en-US/ˈkloʊˌvʌɹlif ˈkweɪzɑɹ/

دسته بندی ها:

astrophysical X-ray sourcequasar